Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trang tuan » tran tuan, trong tuan, tran xuan
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh ((trang tuan) OR (trung tuan)) nhung cong tac toan cao~.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trang tuan) or (trung tuan)) nhung cong tac toan cao*.